Thick tape made with 3M THV 221 GZ, thickness 40 ~ 50 mil, 200 mm x 270 mm size for research and development.40 um thick film extruded with Dyneon THV 815 GZ TFE-HFP-VDF resin, very optically transparent, two pieces of 120 mm x 275 mm for research.

also with 30 cm wide small roll for higher price.